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A city population Ist year 15% increase,...

A city population Ist year `15%` increase, Iind year `20%` increase and IIIrd year `10%` decrease. Then find the ratio of 3 year ago population and present population.

A

`600:621`

B

`400:621`

C

`500:621`

D

`300:521`

Text Solution

Verified by Experts

The correct Answer is:
C
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